Nuclear spin relaxation in isotropic and anisotropic media

Matthew P. Nicholas, Ertan Eryilmaz, Fabien Ferrage, David Cowburn, Ranajeet Ghose

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

A unified, self-consistent description of the microscopic interactions that influence dynamics in spin-space for an ensemble of spin-1/2 particles, as well as the real-space effects of the macroscopic (classical) global rotational diffusion determined both by molecular shape and the nature of the solvent is studied. The combined effects of the two on the spin-relaxation rates measured by NMR spectroscopists is also studied. The measurement of amide 15N spin-lattice (R1), spin spin (R2) and the steady-state NOE with the attached hydrogen has become routine for practitioners of biomolecular NMR spectroscopy. These rates can be used to determine the underlying spectral density functions and to interpret them using the Lipari-Szabo formalism that relies on the separation of the global rotational diffusion and local dynamics on single or multiple timescales. All spectral density functions in this review have been derived assuming that the spin-system under consideration is rigidly attached to the biomolecule and that the only motion results from the overall rotational diffusion.

Original languageEnglish (US)
Pages (from-to)111-158
Number of pages48
JournalProgress in Nuclear Magnetic Resonance Spectroscopy
Volume57
Issue number2
DOIs
StatePublished - Aug 2010

Fingerprint

Anisotropic media
isotropic media
anisotropic media
nuclear spin
Spectral density
Probability density function
Biomolecular Nuclear Magnetic Resonance
Biomolecules
Amides
Nuclear magnetic resonance spectroscopy
Hydrogen
Magnetic Resonance Spectroscopy
Nuclear magnetic resonance
nuclear magnetic resonance
amides
formalism
hydrogen
spectroscopy

Keywords

  • Chemical shift
  • Dipolar coupling
  • Rotational diffusion
  • Spin relaxation
  • Stochastic processes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Biochemistry
  • Medicine(all)

Cite this

Nuclear spin relaxation in isotropic and anisotropic media. / Nicholas, Matthew P.; Eryilmaz, Ertan; Ferrage, Fabien; Cowburn, David; Ghose, Ranajeet.

In: Progress in Nuclear Magnetic Resonance Spectroscopy, Vol. 57, No. 2, 08.2010, p. 111-158.

Research output: Contribution to journalArticle

Nicholas, Matthew P. ; Eryilmaz, Ertan ; Ferrage, Fabien ; Cowburn, David ; Ghose, Ranajeet. / Nuclear spin relaxation in isotropic and anisotropic media. In: Progress in Nuclear Magnetic Resonance Spectroscopy. 2010 ; Vol. 57, No. 2. pp. 111-158.
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